Hey gurus...I have an issue I can't figure out, and KNOW it has to be something very easy...just missing it. Hope someone can (gently) tell me what I'm missing... Here's the "lab" setup. 2 linux boxes connected going thru a Cisco router to get "outside". One linux box has 2 nics, the other 1. The 2 nic box is routing (/proc/sys/net/ipv4/ip_forward = 1) for the single nic box. Addresses are: Cisco router 172.17.10.1 Linux router 172.17.10.2 and 172.17.11.1 Default gateway set to 172.17.10.1 Linux box 172.17.11.2 default gateway 172.17.11.1 ALL 24 bit SN masks The linux router can get out to the world, the linux box can ping both sides of the linux router, but no one else. What am I missing to let the linux box get to the other side of the linux router? Running RH 7.3, btw. TIA for all your assistance. Rusty __________________________________________________ Do you Yahoo!? Yahoo! Platinum - Watch CBS' NCAA March Madness, live on your desktop! http://platinum.yahoo.com